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1. 发明授权

US06213731B1 Compressor pulse width modulation 有权
标题翻译：压缩机脉宽调制
公开(公告)号：US06213731B1
公开(公告)日：2001-04-10
申请号：US09401343
申请日：1999-09-21
申请人： Roy J. Doepker , Mark Bass , James F. Fogt , Jeffrey Andrew Huddleston
发明人： Roy J. Doepker , Mark Bass , James F. Fogt , Jeffrey Andrew Huddleston
IPC分类号： F04B4902
CPC分类号： F01C21/108 , F01C21/10 , F04C18/0207 , F04C18/0215 , F04C27/005 , F04C28/26 , F04C28/265 , F04C2270/58 , F25B2400/13 , F25B2600/0261 , F25B2600/2509
摘要： A scroll compressor includes a capacity modulation system. The capacity modulation system has a piston that is connected to the non-orbiting scroll that disengages the non-orbiting scroll from the orbiting scroll when a pressure chamber is placed in communication with the suction chamber of the compressor. The non-orbiting scroll member moves into engagement with the orbiting scroll when the chamber is placed in communication with the discharge chamber. The engagement between the two scrolls is broken when the pressure chamber is placed in communication with fluid from the suction chamber. A solenoid valve controls the communication between the pressure chamber and the suction chamber. By operating the valve in a pulsed width modulated mode, the capacity of the compressor can be infinitely varied between zero and one hundred percent.
摘要翻译：涡旋式压缩机包括容量调节系统。容量调节系统具有活塞，该活塞连接到非绕动涡旋件，当将压力室放置成与压缩机的吸入室连通时，该非活动涡旋件使非绕动涡旋件与绕动涡旋分离。当所述室被放置成与所述排放室连通时，所述非绕动涡旋构件移动成与所述绕动涡旋件接合。当压力室与来自吸入室的流体连通时，两个涡旋件之间的接合被破坏。电磁阀控制压力室和抽吸室之间的连通。通过以脉冲宽度调制模式操作阀门，压缩机的容量可以在零百分之一百之间无穷大地变化。

2. 再颁专利

USRE40257E1 Compressor pulse width modulation 有权
标题翻译：压缩机脉宽调制
公开(公告)号：USRE40257E1
公开(公告)日：2008-04-22
申请号：US10675907
申请日：2003-09-29
申请人： Roy J. Doepker , Mark Bass , James F. Fogt , Jeffrey A. Huddleston
发明人： Roy J. Doepker , Mark Bass , James F. Fogt , Jeffrey A. Huddleston
IPC分类号： F04B49/02 , F25B49/02
CPC分类号： F01C21/108 , F01C21/10 , F04C18/0207 , F04C18/0215 , F04C27/005 , F04C28/26 , F04C28/265 , F04C2270/58 , F25B2400/13 , F25B2600/0261 , F25B2600/2509
摘要： A scroll compressor includes a capacity modulation system. The capacity modulation system has a piston that is connected to the non-orbiting scroll that disengages the non-orbiting scroll from the orbiting scroll when a pressure chamber is placed in communication with the suction chamber of the compressor. The non-orbiting scroll member moves into engagement with the orbiting scroll when the chamber is placed in communication with the discharge chamber. The engagement between the two scrolls is broken when the pressure chamber is placed in communication with fluid from the suction chamber. A solenoid valve controls the communication between the pressure chamber and the suction chamber. By operating the valve in a pulsed width modulated mode, the capacity of the compressor can be infinitely varied between zero and one hundred percent.
摘要翻译：涡旋式压缩机包括容量调节系统。容量调节系统具有活塞，该活塞连接到非绕动涡旋件，当将压力室放置成与压缩机的吸入室连通时，该非活动涡旋件使非绕动涡旋件与绕动涡旋分离。当所述室被放置成与所述排放室连通时，所述非绕动涡旋构件移动成与所述绕动涡旋件接合。当压力室与来自吸入室的流体连通时，两个涡旋件之间的接合被破坏。电磁阀控制压力室和抽吸室之间的连通。通过以脉冲宽度调制模式操作阀门，压缩机的容量可以在零百分之一百之间无穷大地变化。

3. 发明授权

US5580230A Scroll machine having an axially compliant mounting for a scroll member 失效
标题翻译：涡卷机具有用于涡旋件的轴向柔性安装件
公开(公告)号：US5580230A
公开(公告)日：1996-12-03
申请号：US307852
申请日：1995-03-07
申请人： Eric G. Keifer , James F. Fogt , Gary K. Fain , Gary J. Anderson , Mark Bass , Jean-Luc Caillat , John P. Elson , Kenneth J. Monnier
发明人： Eric G. Keifer , James F. Fogt , Gary K. Fain , Gary J. Anderson , Mark Bass , Jean-Luc Caillat , John P. Elson , Kenneth J. Monnier
IPC分类号： F01C1/02 , F01C17/06 , F01C19/08 , F04C18/02 , F04C23/00 , F04C27/00 , F04C28/26 , F04C28/28 , F04C29/02 , G01M99/00 , F01C1/04
CPC分类号： F01C1/0215 , F01C17/066 , F01C19/08 , F04C18/0215 , F04C18/0246 , F04C23/008 , F04C27/005 , F04C28/28 , F04C29/023 , G01M99/00 , F04C2230/60 , F04C2240/603 , F04C2240/805 , F04C28/265 , F05B2230/60
摘要： A scroll type machine is disclosed which incorporates an improved mounting arrangement for the non-orbiting scroll member which mounting arrangement greatly facilitates manufacturing and assembly, effectively prevents radial displacement of the non-orbiting scroll member, and offers the advantages of axial compliance. In one embodiment, the non-orbiting scroll is axially movably secured to a bearing housing by means of a plurality of bolts or bolts and sleeves. In another embodiment a rigid annular ring serves to axially movably secure the non-orbiting scroll to the bearing housing while in a third embodiment a stamped ring is secured to both the non-orbiting scroll and the bearing housing. In another embodiment a two piece main bearing housing includes an integral ring for radially positioning the non-orbiting scroll member and means for securing anti-rotation and axial stop means thereto. In yet another embodiment, a bayonet-type axially compliant mounting arrangement is provided for the non-orbiting scroll which provides integral stop means. Additionally, notches may be provided to isolate the mounting flanges of the two piece main bearing from the integral guide ring to avoid possible distortion thereof. A method of assembling and/or testing the compressor is also disclosed.
摘要翻译：公开了一种涡卷式机器，其包括用于非轨道运行涡旋件的改进的安装布置，该安装布置极大地便于制造和组装，有效地防止非绕动涡旋件的径向位移，并提供轴向顺应性的优点。在一个实施例中，非绕动涡旋件通过多个螺栓或螺栓和套筒轴向移动地固定到轴承壳体。在另一个实施例中，刚性环形圈用于轴向可移动地将非绕动涡旋件固定到轴承壳体，而在第三实施例中，冲压环固定到非绕动涡旋件和轴承壳体两者。在另一个实施例中，两件式主轴承壳体包括用于径向定位非绕动涡旋件的整体环和用于将防旋转和轴向止动装置固定到其上的装置。在另一个实施例中，提供了一种卡口式轴向柔性安装装置，用于非绕动涡卷，其提供整体式止动装置。此外，可以提供凹口以将两件式主轴承的安装凸缘与整体导向环隔离，以避免其可能的扭曲。还公开了一种组装和/或测试压缩机的方法。

4. 发明授权

US06179589B2 Scroll machine with discus discharge valve 有权
标题翻译：带铁饼排放阀的滚动机
公开(公告)号：US06179589B2
公开(公告)日：2001-01-30
申请号：US09225054
申请日：1999-01-04
申请人： Mark Bass , Werner H. Prenger , Roy J. Doepker
发明人： Mark Bass , Werner H. Prenger , Roy J. Doepker
IPC分类号： F01C102
CPC分类号： F04C29/126 , F04C18/0215 , F04C23/008 , F04C2240/603 , Y10T137/7937 , Y10T137/7938
摘要： A scroll compressor includes a discharge valve assembly for blocking compressed refrigerant flow from the discharge chamber through the scroll members. This blocking of flow results in an increased performance for the scroll compressor by minimizing the recompression volume due to the configuration of the value assembly and thus the elimination of reverse rotation at shut down. The discharge valve assembly includes a valve seat, a disc shaped valve member, a retainer, a spring and a stop secured within a recess formed within the scroll member.
摘要翻译：涡旋式压缩机包括排出阀组件，用于通过涡旋构件阻止压缩的制冷剂从排出室流动。这种阻塞流动导致涡旋式压缩机的性能提高，因为由于组件的配置而使再压缩体积最小化，从而消除了关闭时的反向旋转。排出阀组件包括阀座，盘形阀构件，保持器，弹簧和固定在形成在涡旋构件内的凹部内的止动件。

5. 发明授权

US5613841A Capacity modulated scroll machine 失效
标题翻译：容量调制滚动机
公开(公告)号：US5613841A
公开(公告)日：1997-03-25
申请号：US479026
申请日：1995-06-07
申请人： Mark Bass , Roy J. Doepker , Jean-Luc M. Caillat , Wayne R. Warner
发明人： Mark Bass , Roy J. Doepker , Jean-Luc M. Caillat , Wayne R. Warner
IPC分类号： F01C21/10 , F04C18/02 , F04C23/00 , F04C27/00 , F04C28/06 , F04C28/22 , F04C28/26 , F04B49/00 , F01C1/04
CPC分类号： F04C28/22 , F01C21/102 , F04C18/0215 , F04C23/008 , F04C27/005 , F04C28/06 , F04C28/265
摘要： A scroll-type machine is disclosed which is particularly well suited for use as a compressor in refrigeration and air conditioning systems and incorporates a unique arrangement for modulating the capacity thereof. In one group of embodiments the capacity of the scroll-type machine is modulated by relative axial movement between the scroll members so as to form a leakage path across the wrap tips and opposed end plates. In another group of embodiments, modulation is achieved by reducing the orbital radius of one of the scroll members to thereby form a leakage path across the flank surfaces of the wraps. Both types of scroll separation may be accomplished in a time pulsed manner to thereby enable a full range of modulation with the duration of the loading and unloading periods being selected to maximize the efficiency of the overall system. A motor control arrangement is also disclosed which may be used with either of the modulation methods mentioned above to increase the efficiency of the motor during periods of reduced load. Additionally, either of the modulation arrangements mentioned above may be combined with a delayed suction form of capacity modulation with or without the motor control feature to thereby achieve better operating efficiency under certain conditions.
摘要翻译：公开了一种特别适合用作制冷和空调系统中的压缩机的涡旋式机器，并且包括用于调节其容量的独特布置。在一组实施例中，涡旋式机器的容量通过涡旋件之间的相对轴向移动来调节，以便形成穿过卷绕尖端和相对端板的泄漏路径。在另一组实施例中，通过减小一个涡旋构件的轨道半径从而形成穿过涡卷的侧面的泄漏路径来实现调制。两种类型的滚动分离可以以时间脉冲的方式实现，从而能够在加载和卸载时段的持续时间被选择以使整个系统的效率最大化的情况下进行全范围的调制。还公开了电动机控制装置，其可以与上述调制方法中的任一种一起使用，以在减小负载期间增加电动机的效率。另外，上述调制装置中的任一个可以与具有或不具有电动机控制特征的电容调制的延迟抽吸形式组合，从而在某些条件下实现更好的操作效率。

6. 再颁专利

USRE40554E1 Capacity modulated scroll machine having one or more pin members movably disposed for restricting the radius of the orbiting scroll member 有权
标题翻译：容量调节涡旋机具有可移动地设置用于限制绕动涡旋构件的半径的一个或多个销构件
公开(公告)号：USRE40554E1
公开(公告)日：2008-10-28
申请号：US10184227
申请日：2002-06-27
申请人： Mark Bass , Roy J. Doepker , Jean-Luc M. Caillat , Wayne R. Warner
发明人： Mark Bass , Roy J. Doepker , Jean-Luc M. Caillat , Wayne R. Warner
IPC分类号： F04B49/02 , F01C1/063
CPC分类号： F25B49/022 , A47F3/04 , F04C18/0215 , F04C23/008 , F04C27/005 , F04C28/00 , F04C28/02 , F04C28/06 , F04C28/08 , F04C28/22 , F04C28/265 , F04C28/28 , F04C2270/015 , F04C2270/86 , F25B1/04 , F25B49/005 , F25B2341/0653 , F25B2600/0261 , F25B2700/193 , F25B2700/1933 , F25B2700/2117 , Y02B30/72
摘要： A scroll-type machine is disclosed which is particularly well suited for use as a compressor in refrigeration and air conditioning systems and incorporates a unique arrangement for modulating the capacity thereof. In one group of embodiments the capacity of the scroll-type machine is modulated by relative axial movement between the scroll members so as to form a leakage path across the wrap tips and opposed end plates. In another group of embodiments, modulation is achieved by reducing the orbital radius of one of the scroll members to thereby form a leakage path across the flank surfaces of the wraps. In the second group, a plurality of pin members are moveable from a first and second positions. In a first position the plurality of pin members operably enable the scroll members to orbit and in a second position the pin members restrict the orbiting motion of the first scroll members. Both types of scroll separation may be accomplished in a time pulsed manner to thereby enable a full range of modulation with the duration of the loading and unloading periods being selected to maximize the efficiency of the overall system. A motor control arrangement is also disclosed which may be used with either of the modulation methods mentioned above to increase the efficiency of the motor during periods of reduced load. Additionally, either of the modulation arrangements mentioned above may be combined with a delayed suction form of capacity modulation with or without the motor control feature to thereby achieve better operating efficiency under certain conditions.
摘要翻译：公开了一种特别适合用作制冷和空调系统中的压缩机的涡旋式机器，并且包括用于调节其容量的独特布置。在一组实施例中，涡旋式机器的容量通过涡旋件之间的相对轴向移动来调节，以便形成穿过卷绕尖端和相对端板的泄漏路径。在另一组实施例中，通过减小一个涡旋构件的轨道半径从而形成穿过涡卷的侧面的泄漏路径来实现调制。在第二组中，多个销构件可从第一和第二位置移动。在第一位置，多个销构件可操作地使得涡旋构件能够进入轨道，并且在第二位置，销构件限制第一涡旋构件的轨道运动。两种类型的滚动分离可以以时间脉冲的方式实现，从而能够在加载和卸载时段的持续时间被选择以使整个系统的效率最大化的情况下进行全范围的调制。还公开了电动机控制装置，其可以与上述调制方法中的任一种一起使用，以在减小负载期间增加电动机的效率。另外，上述调制装置中的任一个可以与具有或不具有电动机控制特征的电容调制的延迟抽吸形式组合，从而在某些条件下实现更好的操作效率。

7. 再颁专利

USRE40400E1 Capacity modulated scroll machine 有权
标题翻译：容量调制滚动机
公开(公告)号：USRE40400E1
公开(公告)日：2008-06-24
申请号：US10678052
申请日：2003-09-30
申请人： Mark Bass , Roy J. Doepker , Jean-Luc M. Caillat , Wayne R. Warner
发明人： Mark Bass , Roy J. Doepker , Jean-Luc M. Caillat , Wayne R. Warner
IPC分类号： F04B49/00
CPC分类号： F25B49/022 , A47F3/04 , F04C18/0215 , F04C23/008 , F04C27/005 , F04C28/00 , F04C28/02 , F04C28/06 , F04C28/08 , F04C28/22 , F04C28/265 , F04C28/28 , F04C2270/015 , F04C2270/86 , F25B1/04 , F25B49/005 , F25B2341/0653 , F25B2600/0261 , F25B2700/193 , F25B2700/1933 , F25B2700/2117 , Y02B30/72
摘要： A scroll-type machine is disclosed which is particularly well suited for use as a compressor in refrigeration and air conditioning systems and incorporates a unique arrangement for modulating the capacity thereof. In one group of embodiments the capacity of the scroll-type machine is modulated by relative axial movement between the scroll members so as to form a leakage path across the wrap tips and opposed end plates. In another group of embodiments, modulation is achieved by reducing the orbital radius of one of the scroll members to thereby form a leakage path across the flank surfaces of the wraps. Both types of scroll separation may be accomplished in a time pulsed manner to thereby enable a full range of modulation with the duration of the loading and unloading periods being selected to maximize the efficiency of the overall system. A motor control arrangement is also disclosed which may be used with either of the modulation methods mentioned above to increase the efficiency of the motor during periods of reduced load. Additionally, either of the modulation arrangements mentioned above may be combined with a delayed suction form of capacity modulation with or without the motor control feature to thereby achieve better operating efficiency under certain conditions.
摘要翻译：公开了一种特别适合用作制冷和空调系统中的压缩机的涡旋式机器，并且包括用于调节其容量的独特布置。在一组实施例中，涡旋式机器的容量通过涡旋件之间的相对轴向移动来调节，以便形成穿过卷绕尖端和相对端板的泄漏路径。在另一组实施例中，通过减小一个涡旋构件的轨道半径从而形成穿过涡卷的侧面的泄漏路径来实现调制。两种类型的滚动分离可以以时间脉冲的方式实现，从而能够在加载和卸载时段的持续时间被选择以使整个系统的效率最大化的情况下进行全范围的调制。还公开了电动机控制装置，其可以与上述调制方法中的任一种一起使用，以在减小负载期间增加电动机的效率。另外，上述调制装置中的任一个可以与具有或不具有电动机控制特征的电容调制的延迟抽吸形式组合，从而在某些条件下实现更好的操作效率。

8. 发明授权

US6086335A Capacity modulated scroll machine having one or more pin members movably disposed for restricting the radius of the orbiting scroll member 失效
标题翻译：容量调节涡旋机具有可移动地设置用于限制绕动涡旋构件的半径的一个或多个销构件
公开(公告)号：US6086335A
公开(公告)日：2000-07-11
申请号：US967851
申请日：1997-11-12
申请人： Mark Bass , Roy J. Doepker , Jean-Luc M. Caillat , Wayne R. Warner
发明人： Mark Bass , Roy J. Doepker , Jean-Luc M. Caillat , Wayne R. Warner
IPC分类号： F01C1/02 , A47F3/04 , F04C18/02 , F04C27/00 , F04C28/00 , F04C28/02 , F04C28/06 , F04C28/08 , F04C28/18 , F04C28/22 , F04C28/26 , F04C28/28 , F25B1/04 , F25B5/02 , F25B41/04 , F25B41/06 , F25B49/00 , F25B49/02 , G05D1/08 , G05D23/19 , F04B49/02
CPC分类号： G05D23/1909 , A47F3/04 , F04C18/0215 , F04C27/005 , F04C28/00 , F04C28/02 , F04C28/06 , F04C28/08 , F04C28/22 , F04C28/265 , F04C28/28 , F25B1/04 , F25B49/022 , G05D1/0858 , F04C2270/015 , F04C2270/86 , F04C23/008 , F25B2341/0653 , F25B2600/0261 , F25B2700/193 , F25B2700/1933 , F25B2700/2117 , F25B49/005 , Y02B30/72
摘要： A scroll-type machine is disclosed which is particularly well suited for use as a compressor in refrigeration and air conditioning systems and incorporates a unique arrangement for modulating the capacity thereof. In one group of embodiments the capacity of the scroll-type machine is modulated by relative axial movement between the scroll members so as to form a leakage path across the wrap tips and opposed end plates. In another group of embodiments, modulation is achieved by reducing the orbital radius of one of the scroll members to thereby form a leakage path across the flank surfaces of the wraps. In the second group, a plurality of pin members are moveable from a first and second positions. In a first position the plurality of pin members operably enable the scroll members to orbit and in a second position the pin members restrict the orbiting motion of the first scroll members. Both types of scroll separation may be accomplished in a time pulsed manner to thereby enable a full range of modulation with the duration of the loading and unloading periods being selected to maximize the efficiency of the overall system. A motor control arrangement is also disclosed which may be used with either of the modulation methods mentioned above to increase the efficiency of the motor during periods of reduced load. Additionally, either of the modulation arrangements mentioned above may be combined with a delayed suction form of capacity modulation with or without the motor control feature to thereby achieve better operating efficiency under certain conditions.
摘要翻译：公开了一种特别适合用作制冷和空调系统中的压缩机的涡旋式机器，并且包括用于调节其容量的独特布置。在一组实施例中，涡旋式机器的容量通过涡旋件之间的相对轴向移动来调节，以便形成穿过卷绕尖端和相对端板的泄漏路径。在另一组实施例中，通过减小一个涡旋构件的轨道半径从而形成穿过涡卷的侧面的泄漏路径来实现调制。在第二组中，多个销构件可从第一位置和第二位置移动。在第一位置，多个销构件可操作地使得涡旋构件能够进入轨道，并且在第二位置，销构件限制第一涡旋构件的轨道运动。两种类型的滚动分离可以以时间脉冲的方式实现，从而能够在加载和卸载时段的持续时间被选择以使整个系统的效率最大化的情况下进行全范围的调制。还公开了电动机控制装置，其可以与上述调制方法中的任一种一起使用，以在减小负载期间增加电动机的效率。另外，上述调制装置中的任一个可以与具有或不具有电动机控制特征的电容调制的延迟抽吸形式组合，从而在某些条件下实现更好的操作效率。

9. 发明授权

US5741120A Capacity modulated scroll machine 失效
标题翻译：容量调制滚动机
公开(公告)号：US5741120A
公开(公告)日：1998-04-21
申请号：US486118
申请日：1995-06-07
申请人： Mark Bass , Roy J. Doepker , Jean-Luc M. Caillat , Wayne R. Warner
发明人： Mark Bass , Roy J. Doepker , Jean-Luc M. Caillat , Wayne R. Warner
IPC分类号： F01C1/02 , A47F3/04 , F04C18/02 , F04C27/00 , F04C28/00 , F04C28/02 , F04C28/06 , F04C28/08 , F04C28/18 , F04C28/22 , F04C28/26 , F04C28/28 , F25B1/04 , F25B5/02 , F25B41/04 , F25B41/06 , F25B49/00 , F25B49/02 , G05D1/08 , G05D23/19 , F04B49/00
CPC分类号： G05D23/1909 , A47F3/04 , F04C18/0215 , F04C27/005 , F04C28/00 , F04C28/02 , F04C28/06 , F04C28/08 , F04C28/22 , F04C28/265 , F04C28/28 , F25B1/04 , F25B49/022 , G05D1/0858 , F04C2270/015 , F04C2270/86 , F04C23/008 , F25B2341/0653 , F25B2600/0261 , F25B2700/193 , F25B2700/1933 , F25B2700/2117 , F25B49/005 , Y02B30/72
摘要： A scroll-type machine is disclosed which is particularly well suited for use as a compressor in refrigeration and air conditioning systems and incorporates a unique arrangement for modulating the capacity thereof. In one group of embodiments the capacity of the scroll-type machine is modulated by relative axial movement between the scroll members so as to form a leakage path across the wrap tips and opposed end plates. In another group of embodiments, modulation is achieved by reducing the orbital radius of one of the scroll members to thereby form a leakage path across the flank surfaces of the wraps. Both types of scroll separation may be accomplished in a time pulsed manner to thereby enable a full range of modulation with the duration of the loading and unloading periods being selected to maximize the efficiency of the overall system. A motor control arrangement is also disclosed which may be used with either of the modulation methods mentioned above to increase the efficiency of the motor during periods of reduced load. Additionally, either of the modulation arrangements mentioned above may be combined with a delayed suction form of capacity modulation with or without the motor control feature to thereby achieve better operating efficiency under certain conditions.
摘要翻译：公开了一种特别适合用作制冷和空调系统中的压缩机的涡旋式机器，并且包括用于调节其容量的独特布置。在一组实施例中，涡旋式机器的容量通过涡旋件之间的相对轴向移动来调节，以便形成穿过卷绕尖端和相对端板的泄漏路径。在另一组实施例中，通过减小一个涡旋构件的轨道半径从而形成穿过涡卷的侧面的泄漏路径来实现调制。两种类型的滚动分离可以以时间脉冲的方式实现，从而能够在加载和卸载时段的持续时间被选择以使整个系统的效率最大化的情况下进行全范围的调制。还公开了电动机控制装置，其可以与上述调制方法中的任一种一起使用，以在减小负载期间增加电动机的效率。另外，上述调制装置中的任一个可以与具有或不具有电动机控制特征的电容调制的延迟抽吸形式组合，从而在某些条件下实现更好的操作效率。

10. 发明授权

US5611674A Capacity modulated scroll machine 失效
公开(公告)号：US5611674A
公开(公告)日：1997-03-18
申请号：US479025
申请日：1995-06-07
申请人： Mark Bass , Roy J. Doepker , Jean-Luc M. Caillat , Wayne R. Warner
发明人： Mark Bass , Roy J. Doepker , Jean-Luc M. Caillat , Wayne R. Warner
IPC分类号： F01C21/10 , F04C18/02 , F04C27/00 , F04C28/06 , F04C28/22 , F04C28/26 , F01C1/04 , F04B49/00
CPC分类号： F04C28/22 , F01C21/102 , F04C18/0215 , F04C27/005 , F04C28/06 , F04C28/265
摘要： A scroll-type machine is disclosed which is particularly well suited for use as a compressor in refrigeration and air conditioning systems and incorporates a unique arrangement for modulating the capacity thereof. In one group of embodiments the capacity of the scroll-type machine is modulated by relative axial movement between the scroll members so as to form a leakage path across the wrap tips and opposed end plates. In another group of embodiments, modulation is achieved by reducing the orbital radius of one of the scroll members to thereby form a leakage path across the flank surfaces of the wraps. Both types of scroll separation may be accomplished in a time pulsed manner to thereby enable a full range of modulation with the duration of the loading and unloading periods being selected to maximize the efficiency of the overall system. A motor control arrangement is also disclosed which may be used with either of the modulation methods mentioned above to increase the efficiency of the motor during periods of reduced load. Additionally, either of the modulation arrangements mentioned above may be combined with a delayed suction form of capacity modulation with or without the motor control feature to thereby achieve better operating efficiency under certain conditions.

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